JP2020152454A - Spout and pouch with spout - Google Patents

Abstract

To provide a spout with simple structure that can reduce amount of residual content.SOLUTION: A spout 30 includes an attachment part 32 mounted on a pouch 20, and an extension part 40 extending downward from the attachment part 32 for forming a content flow path to the inside of the pouch 20. The extension part 40 has, in at least an area in the up-and-down direction, a portion whose shape viewed from the lower side is asymmetrically formed in the pouch front-back direction Y when a virtual line parallel to the pouch left-right direction X is used as a reference.SELECTED DRAWING: Figure 1

Description

The present invention relates to a spout attached to a pouch and a pouch with a spout, and more particularly to a spout and a pouch with a spout attached to a pouch containing viscous and fluid contents such as a jelly-like beverage.

Conventionally, it has been known to use a pouch formed in a bag shape by heat-welding a stacked film at a predetermined position as a container for accommodating viscous and fluid contents such as a jelly-like beverage. It is also known that by attaching a spout having a spout hole to the spout of such a pouch, it is possible to easily pour out the contents.

In such a pouch with a spout, when the remaining amount of the contents is reduced, the front side film portion and the back side film portion are in close contact with each other, and the vicinity of the entrance of the spout injection hole is blocked, so that the injection of the contents is hindered. It may end up.

Therefore, in order to avoid the above-mentioned phenomenon that the vicinity of the entrance of the spout injection hole is blocked, the pouch extends downward from the mounting portion of the spout mounted on the pouch. It is known that an extension portion (blockage prevention member) is provided inside to form a flow path for the contents (see, for example, Patent Document 1).

JP-A-2018-131256

However, even when such an extension portion is provided, as shown in FIG. 38, as the remaining amount of the contents is reduced, the front side film portion and the back side film portion are arranged from both outer sides to the inner side in the left-right direction of the pouch. The film adhesion region R in which the films are in close contact with each other expands, and such a phenomenon that the left and right film adhesion regions R are connected or substantially connected in the vicinity of the center in the left-right direction of the pouch may occur. If the left and right film adhesion regions R are connected or substantially connected, it becomes difficult to eject the remaining contents to the bottom 124 of the pouch below the connected film adhesion regions R.

Further, as one idea for avoiding the phenomenon that it becomes difficult to eject the contents remaining on the bottom portion 124 of the pouch below the connected film adhesion region R as described above, the extension portion is in the vertical direction. It is possible to set the size longer, but in this case, when the pouch is upright or the pouch falls, the tip of the extension part comes into contact with the vicinity of the bottom of the pouch, and the bottom is broken or the bottom is broken. The extension itself will also break. In addition, there arises a problem that the material cost and weight of the extension portion increase.

Therefore, the present invention has been made to solve these problems, and an object of the present invention is to provide a spout capable of reducing the remaining amount of contents with a simple configuration.

The spout of the present invention is a spout having a mounting portion mounted on the pouch and an extending portion extending downward from the mounting portion to form a flow path for contents inside the pouch. The extension portion is formed so that the shape of the extension portion is asymmetrically formed in the front and back directions of the pouch when viewed from the lower side when the virtual line parallel to the left and right directions of the pouch is used as a reference. By having it in the local area, the above-mentioned problem is solved.
The pouch with a spout of the present invention solves the above-mentioned problem by including the spout and a pouch having a front side film portion and a back side film portion and attached to the mounting portion.

According to the first aspect of the present invention, when the extension portion is based on a virtual line parallel to the left and right direction of the pouch, the shape when viewed from the lower side is asymmetrically formed in the front and back directions of the pouch. By having at least a part of the area in the vertical direction, the deformed state of each film part such as wrinkles caused by contact with the extended part when the remaining amount of the contents is reduced can be changed with the front side film part. It can be different from the back side film part. As a result, the left and right film contact areas where the front side film portion and the back side film portion are in close contact with each other, which expands from both outer sides in the left and right direction of the pouch to the inside as the remaining amount of the contents is reduced, are located near the center of the pouch left and right direction. Since it is possible to suppress or delay the phenomenon of being connected or almost connected in the film, it is possible to prevent the contents from being enclosed in the bottom of the pouch below the film adhesion region, and to dispense the contents satisfactorily. be able to.

According to the second aspect of the present invention, when the extension portion is based on a virtual line parallel to the front and back directions of the pouch, the shape when viewed from the lower side is asymmetrically formed in the left-right direction of the pouch. By having at least a part of the area in the vertical direction, the deformed state of each film portion due to the contact with the extending portion when the remaining amount of the contents is reduced can be checked in the front side film portion and the back side film portion. The pouch can be made different in the left-right direction. Thereby, in particular, the position of the vertical wrinkle formed on the front side film portion and the position of the vertical wrinkle formed on the back side film portion due to the contact with the extending portion can be shifted in the left-right direction of the pouch. Therefore, it is possible to suppress the phenomenon that the above-mentioned film adhesion region is connected or almost connected near the center in the left-right direction of the pouch.
According to the fourth aspect of the present invention, the shape when viewed from the lower side of the lower end portion of the extended portion is asymmetrically formed in the front and back directions of the pouch and the left and right directions of the pouch. Since it is easy to obtain the deformed state of each film portion due to the contact with the extension portion when the remaining amount of the film is reduced even in the region below the extension portion, the above-mentioned description is also made in the region below the extension portion. It is possible to suppress the phenomenon that the left and right film contact areas are connected or almost connected near the center in the left-right direction of the pouch. In addition, since it is possible to control the deformation state of each film portion in the region below the extension portion, it is possible to design the extension portion to have a shorter vertical dimension, so that the contents can be dispensed. In the final stage, since the extension portion does not hinder the contact between the front side film portion and the back side film portion in the region below the extension portion, the contents remaining in the region below the extension portion. The amount of can be reduced. In addition, even when the pouch is upright or the pouch is dropped, the tip of the extension portion is prevented from contacting the bottom of the pouch, the bag is broken near the bottom, or the extension portion itself is broken. You can prevent that. In addition, it is possible to reduce the material cost and weight of the spout.
According to the fifth aspect of the present invention, the extension portion is a front side vertical wrinkle forming portion extending in the extending direction of the extension portion on the side facing the front film portion of the pouch of the extension portion and at least on the downstream side. On the side facing the film portion on the back side of the pouch of the extension portion and at least on the downstream side, the extension portion has a back side vertical wrinkle forming portion extending in the extending direction, and the front side vertical wrinkle forming portion and the back side of the extension portion. The vertical wrinkle forming portion is formed at a position shifted from each other in the left-right direction of the pouch. As a result, vertical wrinkles are formed in each film portion even in the region below the extended portion, and the gap between the front side film portion and the back side film portion caused by the formation of the vertical wrinkles is filled with the flow for dispensing the contents. Not only can it be used as a road, but also the position of the vertical wrinkles formed on the front side film portion and the position of the vertical wrinkles formed on the back side film portion can be shifted in the left-right direction of the pouch. It is possible to suppress the phenomenon that the film adhesion region is connected or almost connected near the center in the left-right direction of the pouch.
According to the invention of claim 7, since the extended portion has a curved portion having a curved plate-like member shape, the remaining amount of the content is left in the middle stage of the content injection. Even when each film portion comes into contact with the extension portion as the reduction progresses, a gap can be secured around the extension portion and the gap can be used as a flow path to satisfactorily inject the contents. Further, in the final stage of dispensing the contents, each film portion can be brought into close contact with or almost in close contact with the outer surface of the curved portion as the remaining amount of the contents is reduced, and the gap can be eliminated or narrowed. Therefore, the amount of the contents remaining in the gap can be reduced. Further, when the contents are poured out, the contents remaining between the extension portion and each film portion may be squeezed out by pushing the pouch from the outside with the user's finger. In the present invention, since the user's finger can be easily fitted to the curved portion, the above-mentioned squeezing can be smoothly performed without causing the user to feel uncomfortable.
According to the eighth aspect of the present invention, the extended portion has a twisted portion in which the plate-shaped member is twisted so that the upper end portion and the lower end portion of the plate-shaped member form an angle. In the middle stage of dispensing the contents, even when each film portion is in contact with the twist portion, it is possible to form a gap between the twisted portion having a twisted shape and each film portion. The contents can be satisfactorily poured out by using as a flow path, and in the final stage of the contents pouring, each film portion is brought into close contact with or substantially in close contact with the outer surface of the twisted portion to close the gap. Since it can be eliminated or narrowed, the amount of contents remaining in the gap can be reduced. Further, by forming the twisted portion in a shape in which the plate-shaped member is twisted so that the upper end portion and the lower end portion of the plate-shaped member form an angle, between the upper end portion and the lower end portion of the twisted portion with a simple structure. Since it is possible to adjust the relationship of the orientation of the pouch, it is possible to arrange the lower end of the extension so that the lower end of the extension is asymmetrical in the left-right direction of the pouch and the front and back directions of the pouch, regardless of the aspect of the upper end side of the extension. The orientation of the lower end of the extension can be easily adjusted. Further, since the rigidity of the extended portion can be improved by forming the extended portion from the twisted portion having a twisted shape of the plate-shaped member, the extended portion can be extended in the pouch due to the operation of the user or the like. It is possible to prevent the installation part from being damaged.
According to the invention of claim 9, since the curved portion is formed in a region at least below the extension portion, when the spout is manufactured by injection molding, the degree of freedom in design above the extension portion is increased. It can be made expensive, and no special consideration is required for the position of the gate, the alignment of the mold, etc. in the mold production, and the mold production can be facilitated.

Explanatory drawing which shows the pouch with a spout which concerns on 1st Embodiment of this invention. Explanatory drawing which shows the spout which concerns on 1st Embodiment when viewed from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 1st Embodiment when viewed obliquely. Explanatory drawing which shows the spout which concerns on 1st Embodiment seen from the bottom. Explanatory drawing which shows the state of each part at the time of pouring out the contents of 1st Embodiment. Explanatory drawing which shows the spout which concerns on 2nd Embodiment when viewed from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 2nd Embodiment from the oblique view. The explanatory view which shows the flow path forming part of the spout which concerns on 2nd Embodiment by cross-sectional view. Explanatory drawing which shows the spout which concerns on 2nd Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 3rd Embodiment seen from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 3rd Embodiment from the oblique view. An explanatory view showing a cross-sectional view of a flow path forming portion of a spout according to a third embodiment. Explanatory drawing which shows the spout which concerns on 3rd Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 4th Embodiment seen from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 4th Embodiment seen from an oblique view. An explanatory view showing a cross-sectional view of a flow path forming portion of a spout according to a fourth embodiment. Explanatory drawing which shows the spout which concerns on 4th Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 5th Embodiment when viewed from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 5th Embodiment from the oblique view. Explanatory drawing which shows the spout which concerns on 5th Embodiment from an angle different from FIG. Explanatory drawing which shows the spout which concerns on 5th Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 6th Embodiment when viewed from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 6th Embodiment from the oblique view. Explanatory drawing which shows the spout which concerns on 6th Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 7th Embodiment when viewed from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 7th Embodiment from the oblique view. An explanatory view showing a cross-sectional view of a flow path forming portion of a spout according to a seventh embodiment. Explanatory drawing which shows the spout which concerns on 7th Embodiment seen from the bottom. The explanatory view which shows the spout which concerns on 8th Embodiment as seen from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 8th Embodiment from the side opposite to FIG. Explanatory drawing which shows the spout which concerns on 8th Embodiment from the oblique view. An explanatory view showing a cross-sectional view of a flow path forming portion of a spout according to an eighth embodiment. Explanatory drawing which shows the spout which concerns on 8th Embodiment seen from the bottom. Explanatory drawing which shows the spout which concerns on 9th Embodiment seen from the front and back direction of a pouch. Explanatory drawing which shows the spout which concerns on 9th Embodiment from an oblique view. An explanatory view showing a cross-sectional view of a flow path forming portion of a spout according to a ninth embodiment. Explanatory drawing which shows the spout which concerns on 9th Embodiment seen from the bottom. Explanatory drawing explaining the problem of the conventional pouch with a spout.

The pouch 10 with a spout according to the first embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the pouch 10 with a spout is formed by attaching a spout 30 that functions as a spout to a pouch 20 formed in a bag shape by heat-welding a stacked film at a predetermined position, and is a jelly. It accommodates viscous contents such as beverages and fluid contents (content liquids) such as liquids and sherbets.

Hereinafter, each component of the pouch 10 with a spout will be described with reference to the drawings.

The spout 30 is formed of a synthetic resin or the like, and has a spout main body 31 attached to the pouch 20 and a cap portion 37 detachably attached to the spout main body 31 as shown in FIG.

As shown in FIGS. 2 and 3, the spout body 31 has a boat-shaped cross section (specifically, the cylindrical portion projects from the vicinity of both ends of the pouch left-right direction X toward the outside of the pouch left-right direction X. A shape in which a substantially triangular projecting portion is formed), a rhombus-shaped mounting portion 32, a dispensing cylinder portion 33 extending upward from the mounting portion 32, and a space above the mounting portion 32. A plurality of flange portions 35, 36 to be formed and an extension portion 40 extending downward from the mounting portion 32 and arranged inside the pouch 20 (content accommodating portion 23) are integrally provided.

As shown in FIGS. 2 to 4, the mounting portion 32 is arranged between the front side film portion 21 and the back side film portion 22 of the pouch 20 in a state where the longitudinal direction thereof faces the pouch left-right direction X, and heat welding or heat welding is performed. This is a portion fixed to the front side film portion 21 and the back side film portion 22 by adhesion or the like.
As shown in FIG. 4, the mounting portion 32 has a round hole-shaped injection hole 32a formed along the vertical direction Z.

As shown in FIGS. 3 and 4, the dispensing cylinder portion 33 is a cylindrical portion having a round hole-shaped dispensing hole 33a continuous in the vertical direction Z in the dispensing hole 32a of the mounting portion 32.
On the upper end side of the dispensing cylinder portion 33 (above the upper second flange portion 36), on the outer peripheral surface of the dispensing cylinder portion 33, as shown in FIG. 1, a screw that can be engaged with the cap portion 37. The portion 33b is formed.

As shown in FIG. 1, the plurality of flange portions 35, 36 have a first flange portion 35 formed at the lowermost position (formed closest to the mounting portion 32) and above the first flange portion 35. A plurality of (two in this embodiment) second flange portions 36 to be formed are included.

Next, the extension portion 40 in the first embodiment will be described below.

First, the extension portion 40 is a portion for forming a flow path for the contents inside the pouch 20 (content storage portion 23), and is below the attachment portion 32 as shown in FIGS. 1 to 4. It has an upper base portion 50 that is continuously formed and a flow path forming portion 60 that is continuously formed below the upper base portion 50.

As shown in FIG. 3, the upper base portion 50 is formed in a flat plate shape (or substantially flat plate shape), and is integrally formed on the lower surface of the mounting portion 32 in a state parallel to the pouch left-right direction X and the vertical direction Z. There is.
As shown in FIGS. 1 to 4, the upper base portion 50 is formed with a through hole 51 that is formed through the thickness direction (pouch front and back directions Y) and communicates with the injection hole 32a of the mounting portion 32. There is.

As shown in FIGS. 2 to 4, the flow path forming portion 60 is composed of a twisted portion (curved portion) 61 having a shape in which the plate-shaped member is curved so as to be twisted.

As shown in FIGS. 2 to 4, the twist portion 61 has a substantially rectangular shape and a flat plate shape (or a substantially flat plate shape) in which R portions for reducing damage due to contact with the bag are formed at both corner portions on the lower end side thereof. ) Has a shape twisted by a predetermined angle (45 ° in this embodiment) around the vertical axis (of the pouch 20 or the plate-shaped member), in other words, the upper end and the lower end of the plate-shaped member. It has a shape in which the plate-shaped members are evenly twisted so as to form a predetermined angle (45 ° in the present embodiment).

As shown in FIGS. 2 to 4, the upper end portion of the twist portion 61 is integrally formed with the lower end surface of the upper base portion 50 in a state where the longitudinal direction thereof is directed to the left-right direction X of the pouch.
Further, as shown in FIGS. 2 to 4, the lower end portion of the twist portion 61 has a predetermined angle (45 ° in the present embodiment) with respect to the pouch left-right direction X (and the pouch front-back direction Y) in the longitudinal direction thereof. It is formed to form.

As shown in FIGS. 2 to 4, the flow path forming portion 60 (twisted portion 61) includes one front side vertical wrinkle forming portion 62 for forming vertical wrinkles on the front side film portion 21 when the remaining amount of the contents is reduced. The back side film portion 22 has one back side vertical wrinkle forming portion 63 for forming vertical wrinkles when the remaining amount of the contents is reduced.

As shown in FIGS. 2 to 4, the front vertical wrinkle forming portion 62 has a direction in which the extending portion 40 extends (that is, on the front side and at least the downstream side of the flow path forming portion 60 facing the front film portion 21 of the pouch 20. It is a portion formed so as to extend in parallel or substantially parallel to the vertical direction Z).
The front side vertical wrinkle forming portion 62 is a flow path forming portion 60 facing the front side film portion 21 of the pouch 20 in each cross section of the flow path forming portion 60 (twisted portion 61) viewed in cross section so as to be orthogonal to the vertical direction Z. Of the front side of the pouch, the height in the front and back direction Y of the pouch is the highest, that is, it is located on the front side film portion 21 side.
As a result, when the remaining amount of the contents is reduced, the front side vertical wrinkle forming portion 62 comes into contact with the front side film portion 21 and vertical wrinkles can be formed on the front side film portion 21.

As shown in FIGS. 2 to 4, the back side vertical wrinkle forming portion 63 is arranged in the direction in which the extending portion 40 extends (that is, on the back side and at least the downstream side of the flow path forming portion 60 facing the back side film portion 22 of the pouch 20. It is a portion formed so as to extend in parallel or substantially parallel to the vertical direction Z).
The back side vertical wrinkle forming portion 63 is a flow path forming portion 60 facing the back side film portion 22 of the pouch 20 in each cross section of the flow path forming portion 60 (twisted portion 61) viewed in cross section so as to be orthogonal to the vertical direction Z. The height of the back side of the pouch in the front-back direction Y is the highest, that is, it is located on the back side film portion 22 side.
As a result, when the remaining amount of the contents is reduced, the back side vertical wrinkle forming portion 63 comes into contact with the back side film portion 22, and vertical wrinkles can be formed on the back side film portion 22.

As shown in FIGS. 2 to 4, the front side vertical wrinkle forming portion 62 and the back side vertical wrinkle forming portion 63 are formed at positions shifted from each other in the left-right direction X of the pouch.

In the first embodiment, as shown in FIGS. 2 to 4, the left and right side edges (at least the lower portion) of the plate-shaped member constituting the twist portion 61 (flow path forming portion 60) are formed on the front side vertical wrinkle forming portion 62. Alternatively, it functions as a back side vertical wrinkle forming portion 63.

As shown in FIGS. 2 to 4, the left and right side edges (vertical wrinkle forming portions 62, 63) of the plate-shaped member constituting the twist portion 61 are located on the front and back sides of the pouch in the downward direction when viewed in the left-right direction X of the pouch. It is formed so that the height in the direction Y is high.

In order to satisfactorily form vertical wrinkles on the film portions 21 and 22, as shown in FIGS. 1 and 4, the front side vertical wrinkle forming portion 62 and the back side vertical wrinkle forming portion 63 are formed in the front and back direction Y of the pouch. The distance D between the front side vertical wrinkle forming portion 62 and the back side vertical wrinkle forming portion 63 in the pouch front and back direction Y at the farthest position is the pouch left and right (at the position where the vertical wrinkle forming portions 62 and 63 are arranged). It is preferably set at 5 to 30% of the inner width dimension W of the content accommodating portion 23 of the pouch 20 in the direction X. The distance D in FIG. 4 indicates the distance D at the lower ends of the vertical wrinkle forming portions 62 and 63.
Further, the dimensions of the vertical wrinkle forming portions 62 and 63 in the direction in which the extending portion 40 extends are preferably set to 20 to 60 mm.

In the first embodiment, as shown in FIG. 4, the shape of the extension portion 40 when the entire extension portion 40 is viewed from below (projected in the vertical direction Z) is a virtual line parallel to the pouch horizontal direction X. Based on (virtual line passing through the extension 40), the virtual line asymmetrical to the front and back directions Y of the pouch and parallel to the front and back directions Y of the pouch (virtual line passing through the extension 40) was used as the reference. In some cases, the pouch is formed asymmetrically in the left-right direction X.
Further, as shown in FIG. 4, the extension portion 40 is also formed asymmetrically in the front and back directions Y of the pouch and asymmetrically in the left-right direction X of the pouch in terms of the shape when the lower end portion thereof is viewed from the lower side.
The lower end of the extension 40 in the present specification means a portion near the lowermost end including the lowermost end of the extension 40, and specifically, the extension in the vertical direction Z. It means a portion of the lower 10% of the total length of the portion 40.

As shown in FIG. 1, the vertical dimension of the extension portion 40 is set to 2/3 or less of the vertical dimension of the content accommodating portion 23 of the pouch 20, that is, the spout 30 in the pouch left-right direction X is attached. It is set to 2/3 or less of the vertical dimension of the content accommodating portion 23 of the pouch 20 at the position (in the example shown in FIG. 1, the central position in the horizontal direction X of the pouch).

Next, the state of each part of the pouch 10 with a spout at the time of dispensing the contents will be described below with reference to FIG.

First, as the pouring of the contents in the pouch 10 with a spout progressed, the film portions 21 and 22 of the pouch 20 came into contact with the extending portion 40 in the middle of the content pouring, as shown in FIG. It becomes a state.

Here, in the middle stage of the content injection, since the flow path forming portion 60 is composed of the twisted portion 61 having a shape curved so as to twist the plate-shaped member, as shown in FIG. Even when the film portions 21 and 22 come into contact with the extending portion 40, a gap G can be secured around the flow path forming portion 60. As a result, the contents can be satisfactorily poured out by using the gap G as a flow path.

Further, since the extending portion 40 has the front side vertical wrinkle forming portion 62 and the back side vertical wrinkle forming portion 63 in the middle stage of the content injection, as shown in FIG. 5, from the extending portion 40. Since it is possible to form vertical wrinkles in the film portions 21 and 22 even in the lower region, the gap G generated between the front side film portion 21 and the back side film portion 22 due to the formation of the vertical wrinkles is included. It can be used as a flow path for product injection.

Further, as shown in FIG. 5, the front side vertical wrinkle forming portion 62 and the back side vertical wrinkle forming portion 63 of the extending portion 40 are formed at positions shifted from each other in the left-right direction X of the pouch, so that the front side film portion is formed. Since the position of the vertical wrinkle formed on the 21 and the position of the vertical wrinkle formed on the back side film portion 22 can be shifted in the pouch left-right direction X, the pouch left-right direction X as the remaining amount of the contents is reduced. Suppresses or delays the phenomenon that the left and right film contact areas where the front side film portion 21 and the back side film portion 22 are in close contact with each other, which expands from both outer sides to the inside, are connected or almost connected near the center of the pouch left-right direction X. be able to.

Next, in the final stage of the content ejection, in which the content is further dispensed, the flow path forming portion 60 is composed of a twisted portion 61 having a shape curved so as to twist the plate-shaped member. Therefore, it is possible to eliminate or narrow the gap G by bringing the film portions 21 and 22 into close contact with or substantially close to the outer surface of the twisted portion (curved portion) 61 as the remaining amount of the contents is reduced. , The amount of contents remaining in the gap G can be reduced.

Further, in the final stage of the content injection, the front side film portion 21 and the back side film portion 22 can be brought into close contact with each other in the region below the extension portion 40, and therefore below the extension portion 40. The amount of contents remaining in the area of can be reduced.

Next, the pouch 10 with a spout according to the second embodiment of the present invention will be described with reference to FIGS. 6 to 9. Here, since the second embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the second embodiment, as shown in FIGS. 6 to 9, plate-shaped members are formed on the left and right side edges of the plate-shaped members constituting the twisted portion 61 (flow path forming portion 60) on the rear side in the twisting direction of the plate-shaped members. A lip portion 64 that rises in the front and back directions of the member is formed.

As described above, since the twist portion 61 has the lip portions 64 rising in the front and back directions of the plate-shaped member on the left and right side edges of the plate-shaped member, the rigidity of the twist portion 61 can be improved and the twist portion 61 can be extended. It is possible to suppress damage to the installation portion 40 and the like. Further, as a method of forming the twisted portion 61, it is conceivable to form the twisted portion 61 by bending (twisting) the plate-shaped member. In such a case, the lip portion 64 is formed into a plate-shaped portion. It can also be used as a part for hooking a tool when bending (twisting) a member.

Next, the pouch 10 with a spout according to the third embodiment of the present invention will be described with reference to FIGS. 10 to 13. Here, since the third embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the first embodiment described above, as shown in FIG. 4, the twist portion 61 (flow path forming portion 60) has a shape in which a flat plate-shaped member is twisted by a predetermined angle (45 °) around a vertical axis. However, in the third embodiment, as shown in FIGS. 10 to 13, the twist portion 61 has a curved plate-shaped member whose vertical axis is curved so as to undulate in the left-right direction of the plate-shaped member. It has a shape twisted around a predetermined angle (45 °).

Next, the pouch 10 with a spout according to the fourth embodiment of the present invention will be described with reference to FIGS. 14 to 17. Here, since the fourth embodiment is exactly the same as the third embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the fourth embodiment, as shown in FIGS. 14 to 17, plate-shaped members are formed on the left and right side edges of the plate-shaped members constituting the twisted portion 61 (flow path forming portion 60) on the rear side in the twisting direction of the plate-shaped members. A lip portion 64 that rises in the front and back directions of the member is formed.

Next, the pouch 10 with a spout according to the fifth embodiment of the present invention will be described with reference to FIGS. 18 to 21. Here, since the fifth embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the fifth embodiment, as shown in FIGS. 18 to 21, the extension portion 40 forms an angle (45 ° in the present embodiment) with respect to the pouch left-right direction X and the pouch front-back direction Y. It is composed of a flat plate-shaped (or substantially flat plate-shaped) flow path forming portion 60 continuously formed below the mounting portion 32.

As shown in FIGS. 18 to 21, a through hole 68 is formed in the upper portion of the flow path forming portion 60 so as to penetrate along the thickness direction thereof and communicate with the injection hole 32a of the mounting portion 32. ..

In the fifth embodiment, as shown in FIG. 21, the shape of the extension portion 40 when the entire extension portion 40 is viewed from the lower side is asymmetrically formed in the front and back directions of the pouch Y and in the left and right direction X of the pouch. ..
Further, as shown in FIG. 21, the extension portion 40 is also formed asymmetrically in the front and back directions Y of the pouch and asymmetrically in the left-right direction X of the pouch in terms of the shape when the lower end portion thereof is viewed from the lower side.

Further, in the fifth embodiment, as shown in FIGS. 18 to 21, the left and right side edges (at least the lower portion) of the flat plate-shaped flow path forming portion 60 are formed on the front side vertical wrinkle forming portion 62 or the back side vertical wrinkle forming portion 62. Functions as 63.

Next, the pouch 10 with a spout according to the sixth embodiment of the present invention will be described with reference to FIGS. 22 to 24. Here, since the sixth embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the sixth embodiment, as shown in FIGS. 22 to 24, the extending portion 40 defines a substantially rectangular and flat plate-shaped member having R portions formed at both corners on the lower end side thereof around the vertical axis. It is composed of a twisted portion 61 (flow path forming portion 60) having a twisted angle (20 ° in the present embodiment).

As shown in FIGS. 22 to 24, the upper end portion of the twist portion 61 is formed on the lower end surface of the mounting portion 32 so that the longitudinal direction thereof forms an angle (about 11 ° in the present embodiment) with respect to the left-right direction X of the pouch. It is formed integrally.
Further, as shown in FIGS. 22 to 24, the lower end portion of the twist portion 61 is formed so that the longitudinal direction thereof forms an angle (about 9 ° in the present embodiment) with respect to the left-right direction X of the pouch.

As shown in FIGS. 22 to 24, a through hole 68 is formed in the upper portion of the twist portion 61 (flow path forming portion 60) along the thickness direction thereof and communicates with the injection hole 32a of the mounting portion 32. Is formed.

In the sixth embodiment, as shown in FIG. 24, the shape of the extension portion 40 when the lower end portion thereof is viewed from the lower side is asymmetrically formed in the front and back directions of the pouch Y and in the left and right direction X of the pouch. There is.

Further, in the sixth embodiment, as shown in FIGS. 22 to 24, the left and right side edges (at least the lower portion) of the flow path forming portion 60 function as the front side vertical wrinkle forming portion 62 or the back side vertical wrinkle forming portion 63. To do.

Next, the pouch 10 with a spout according to the seventh embodiment of the present invention will be described with reference to FIGS. 25 to 28. Here, since the seventh embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the seventh embodiment, as shown in FIGS. 25 to 28, the flow path forming portion 60 is composed of a curved portion 61 having a substantially C-shaped plate-shaped member when viewed from the vertical direction Z. ing. The C-shaped curved portion 61 is arranged so as to open in one of the front and back directions Y of the pouch.

Further, in the seventh embodiment, as shown in FIGS. 25 to 28, a through hole 51 is formed in the upper base portion 50 so as to penetrate along the vertical direction Z and communicate with the injection hole 32a of the mounting portion 32. ing.

In the seventh embodiment, as shown in FIG. 28, the shape of the extension portion 40 when the entire extension portion 40 is viewed from the lower side is asymmetrically formed in the front and back directions Y of the pouch.
Further, as shown in FIG. 28, the extension portion 40 is also formed asymmetrically in the front and back directions Y of the pouch with respect to the shape when the lower end portion thereof is viewed from the lower side.

Next, the pouch 10 with a spout according to the eighth embodiment of the present invention will be described with reference to FIGS. 29 to 33. Here, since the eighth embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the eighth embodiment, as shown in FIGS. 29 to 33, the flow path forming portion 60 is a flat plate-shaped base portion 65 arranged parallel to the pouch left-right direction X and the vertical direction Z, and the front and back sides of the pouch of the base portion 65. It has a first projecting piece 66 projecting from one surface in the direction Y, and a second projecting piece 67 projecting from the other surface in the front and back directions Y of the pouch of the base portion 65.
The first protruding piece 66 is formed at the center of the pouch left-right direction X of the base portion 65 over the entire area of the base portion 65 in the vertical direction Z, and the second protruding piece 67 is formed in the pouch left-right direction of the base portion 65. In the center of X, it is formed only on the upper side portion of the base portion 65. The first protruding piece 66 and the second protruding piece 67 are formed parallel to the front and back directions Y and the vertical direction Z of the pouch.

In the eighth embodiment, as shown in FIGS. 29 to 33, the upper base portion 50 has a plurality (4) extending along the vertical direction Z so as to connect the mounting portion 32 and the flow path forming portion 60. It is composed of connecting pieces.

In the eighth embodiment, as shown in FIG. 33, the shape of the extended portion 40 when the lower end portion thereof is viewed from the lower side is asymmetrically formed in the front and back directions Y of the pouch.

Next, the pouch 10 with a spout according to the ninth embodiment of the present invention will be described with reference to FIGS. 34 to 37. Here, since the ninth embodiment is exactly the same as the first embodiment described above except for a partial configuration, the description of the configuration other than the differences will be omitted.

In the ninth embodiment, as shown in FIGS. 34 to 37, the flow path forming portion 60 is a flat plate integrally formed on the lower end surface of the upper base portion 50 with its longitudinal direction directed to the left-right direction X of the pouch. It has a shaped (or substantially flat plate-shaped) base portion 65, and lip portions 64 that rise in the front-back direction of the base portion 65 at both left and right edges of the base portion 65.
The base portion 65 is formed parallel to the left-right direction X and the vertical direction Z of the pouch, and one of the lip portions 64 projects toward one side in the front-back direction of the base portion 65, and the other of the lip portions 64 is the base. The portion 65 is formed so as to project toward the other side in the front-back direction.

In the ninth embodiment, as shown in FIGS. 34 to 37, the left and right lip portions 64 (at least the lower portion) of the flow path forming portion 60 function as the front side vertical wrinkle forming portion 62 or the back side vertical wrinkle forming portion 63. To do.

In the ninth embodiment, as shown in FIG. 37, the shape of the extension portion 40 when the entire extension portion 40 is viewed from the lower side is formed asymmetrically in the front and back directions Y of the pouch and asymmetrically in the left-right direction X of the pouch. ..
Further, as shown in FIG. 37, the extension portion 40 is also formed asymmetrically in the front and back directions Y of the pouch and asymmetrically in the left-right direction X of the pouch in terms of the shape when the lower end portion thereof is viewed from the lower side.

Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes can be made without departing from the present invention described in the claims. It is possible.

For example, the pouch 10 with a spout may be formed by arbitrarily combining the configurations of the plurality of embodiments and modifications described above.
The film constituting the pouch 20 may be in any specific form, and specific examples thereof include synthetic resin films such as polyester, polypropylene, polyamide, polyethylene, borobutylene terephthalate, and ethylene-vinyl alcohol copolymer. Alternatively, it is formed by laminating a known synthetic resin film such as a coating film or a vapor-deposited film having gas barrier properties and moisture barrier properties on these synthetic resin films, or by laminating paper or aluminum foil on a synthetic resin film. The ones that have been made are mentioned.
Further, the front side film portion 21 and the back side film portion 22 may be composed of separate films separated from each other, or may be configured as one continuous film.

Further, in the above-described first to fourth, sixth, and seventh embodiments, the entire flow path forming portion 60 has been described as being composed of the curved portion (twisted portion) 61, but the vertical direction of the flow path forming portion 60 has been described. The twisted portion (curved portion) 61 may be formed only in a part of the region in Z, and for example, the twisted portion (curved portion) 61 may be formed only in the region on the lower side of the flow path forming portion 60.
Further, in the above-described first to fourth and sixth embodiments, the twist portion 61 has been described as having a shape in which the plate-shaped member is twisted by 20 ° or 45 °, but the angle at which the twist portion 61 is twisted is determined. Anything is not limited to the above. When the twisting angle of the twist portion 61 is set to 10 ° to 60 °, a gap G is formed around the twist portion 61 even when the film portions 21 and 22 are in contact with the twist portion 61 in the middle of dispensing the contents. At the final stage of dispensing the contents, the film portions 21 and 22 can be brought into close contact with or substantially in close contact with the outer surface of the twisted portion 61 to eliminate or narrow the gap. Therefore, it is preferable.
Further, in the above-described first to fourth and sixth embodiments, the twist portion 61 has been described as having a shape in which the plate-shaped member is twisted around the vertical axis (of the pouch 20 or the plate-shaped member). The central axis of the twist is not limited to the vertical axis, and for example, an axis inclined with respect to the vertical axis (of the pouch 20 or the plate-shaped member) may be used as the center of the twist.

Further, in the above-described second, fourth, and ninth embodiments, the lip portions 64 are formed on the left and right side edges of the plate-shaped member or the base portion 65, but the left and right sides of the plate-shaped member or the base portion 65 have been described. The lip portion 64 may be formed on only one of the edges.
Further, in the second, fourth, and ninth embodiments described above, it has been described that the lip portion 64 is formed over the entire area of the left and right side edges of the plate-shaped member in the vertical direction Z, but the plate-shaped member or the base portion. The lip portion 64 may be formed only in a partial region in the vertical direction Z of the left and right side edges of the 65, and for example, the lip portion 64 may be formed only in the region below the plate-shaped member or the base portion 65. ..

Further, of the extension portion 40, a portion whose shape (cross-sectional shape) when viewed from the lower side is asymmetrically formed in the front and back directions Y of the pouch is covered in at least a part of the extension portion 40 in the vertical direction Z. It suffices if it is formed.
Further, of the extension portion 40, a portion whose shape (cross-sectional shape) when viewed from the lower side is asymmetrically formed in the left-right direction X of the pouch is also covered in at least a part of the extension portion 40 in the vertical direction Z. It suffices if it is formed.

Further, in the above-described embodiment, it has been described that the vertical dimension of the extension portion 40 is set to 2/3 or less of the vertical dimension of the content accommodating portion 23 of the pouch 20, but the extension portion 40 The vertical dimension of the pouch 20 is not limited to this, and for example, the vertical dimension of the extension portion 40 may be set to about 60 to 90% of the vertical dimension of the content accommodating portion 23 of the pouch 20.
Further, in the above-described embodiment, the extension portion 40 has been described as being integrally formed with the attachment portion 32, but the extension portion 40 and the attachment portion 32 are formed separately and attached by fitting or the like. The extension portion 40 may be attached to the portion 32.

10 ・ ・ ・ Pouch with spout 20 ・ ・ ・ Pouch 21 ・ ・ ・ Front side film part 22 ・ ・ ・ Back side film part 23 ・ ・ ・ Contents storage part 30 ・ ・ ・ Spout 31 ・ ・ ・ Spout body 32 ・ ・ ・ Installation Part 32a ・ ・ ・ Injection hole 33 ・ ・ ・ Injection cylinder part 33a ・ ・ ・ Injection hole 33b ・ ・ ・ Screw part 35 ・ ・ ・ First flange part 36 ・ ・ ・ Second flange part 37 ・ ・ ・ Cap Part 40 ・ ・ ・ Extension part 50 ・ ・ ・ Upper base part 51 ・ ・ ・ Through hole 60 ・ ・ ・ Flow path forming part 61 ・ ・ ・ Twist part (curved part)
62 ・ ・ ・ Front side vertical wrinkle forming part 63 ・ ・ ・ Back side vertical wrinkle forming part 64 ・ ・ ・ Lip part 65 ・ ・ ・ Base part 66 ・ ・ ・ First protruding piece 67 ・ ・ ・ Second protruding piece 68 ・ ・ ・Through hole X ・ ・ ・ Pouch left and right direction Y ・ ・ ・ Pouch front and back direction Z ・ ・ ・ Vertical direction

Claims (11)

A spout having a mounting portion mounted on a pouch and an extending portion extending downward from the mounting portion to form a flow path for contents inside the pouch.
The extension portion is a portion in which the shape when viewed from the lower side is asymmetrically formed in the front and back directions of the pouch when the virtual line parallel to the left and right directions of the pouch is used as a reference. A spout characterized by having in. The extension portion is a portion in which the shape when viewed from the lower side is asymmetrically formed in the left-right direction of the pouch when the virtual line parallel to the front and back directions of the pouch is used as a reference. The spout according to claim 1, wherein the spout is provided in. The extension portion has a shape that is asymmetrical in the front and back directions of the pouch and parallel to the front and back directions of the pouch when the entire shape is viewed from the lower side with reference to the virtual line parallel to the left and right directions of the pouch. The spout according to claim 2, wherein the pouch is formed asymmetrically in the left-right direction when used as a reference. The shape of the extended portion when the lower end thereof is viewed from the lower side is asymmetric in the front and back directions of the pouch and parallel to the front and back directions of the pouch when the virtual line parallel to the left and right directions of the pouch is used as a reference. The spout according to claim 2 or 3, wherein the pouch is formed asymmetrically in the left-right direction based on the above. On the side of the pouch facing the front film portion of the extension portion, the extension portion is formed on a front side vertical wrinkle forming portion extending in the extending direction of the extension portion and a back film portion of the pouch of the extension portion. On the facing side, it has a back side vertical wrinkle forming portion extending in the extending direction of the extending portion.
The spout according to any one of claims 2 to 4, wherein the front side vertical wrinkle forming portion and the back side vertical wrinkle forming portion are formed at positions shifted from each other in the left-right direction of the pouch. The spout according to claim 5, wherein the extended portion has one front side vertical wrinkle forming portion and one back side vertical wrinkle forming portion. The extension portion according to any one of claims 1 to 6, wherein the extended portion has a curved portion having a shape in which a plate-shaped member is curved in at least a part of a region thereof in the vertical direction. Spout. The spout according to claim 7, wherein the curved portion is a twisted portion having a shape in which the plate-shaped member is twisted so that an upper end portion and a lower end portion of the plate-shaped member form an angle. The spout according to claim 7 or 8, wherein the curved portion is formed in at least a region on the lower side of the extended portion. A pouch with a spout comprising the spout according to any one of claims 1 to 8 and a pouch having a front side film portion and a back side film portion and attached to the mounting portion. The pouch with a spout according to claim 10, wherein the vertical dimension of the extending portion is ⅔ or less of the vertical dimension of the content accommodating portion of the pouch.